Yolanda wasn’t the only one of Dr King’s relatives at the rally, as his daughter Bernice was also present.

Bernice, Yolanda’s auntie, has posted several messages in support of the students on the march and has been vocal on social media.

One of the other notable speeches came from Emma Gonzalez, whose speech lasted the exact time it took the gunman of the Parkland shooting to kill 17 people. The emotional speech lasted exactly six minutes and 20 seconds.

NBC News

In part of the speech, Emma said:

Six minutes and about 20 seconds. In a little over six minutes, 17 of our friends were taken from us, 15 were injured and everyone – absolutely everyone – in the Douglas community was forever altered.

Everyone who was there understands, everyone who has been touched by the cold grip of gun violence understands.

"Fight for your lives before it's someone else's job."WATCH: Emma Gonzalez observes several minutes of silence in a 6-minute, 20-second speech that covered the same time it took the gunman to kill 17 people in her high school. nbcnews.to/2pDcpg9